<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>Function template forward</title>
<link rel="stylesheet" href="../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset">
<link rel="up" href="../move/reference.html#header.boost.move.utility_hpp" title="Header &lt;boost/move/utility.hpp&gt;">
<link rel="prev" href="move_idp64128064.html" title="Function template move">
<link rel="next" href="../mpi.html" title="Chapter&#160;19.&#160;Boost.MPI">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../boost.png"></td>
<td align="center"><a href="../../../index.html">Home</a></td>
<td align="center"><a href="../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../more/index.htm">More</a></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="move_idp64128064.html"><img src="../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../move/reference.html#header.boost.move.utility_hpp"><img src="../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../mpi.html"><img src="../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="refentry">
<a name="boost.forward"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2><span class="refentrytitle">Function template forward</span></h2>
<p>boost::forward</p>
</div>
<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: &lt;<a class="link" href="../move/reference.html#header.boost.move.utility_hpp" title="Header &lt;boost/move/utility.hpp&gt;">boost/move/utility.hpp</a>&gt;

</span>
<span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">&gt;</span> <span class="identifier">output_reference</span> <span class="identifier">forward</span><span class="special">(</span><span class="identifier">input_reference</span><span class="special">)</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idp115542624"></a><h2>Description</h2>
<p>This function provides limited form of forwarding that is usually enough for in-place construction and avoids the exponential overloading for achieve the limited forwarding in C++03.</p>
<p>For compilers with rvalue references this function provides perfect forwarding.</p>
<p>Otherwise: If input_reference binds to const ::boost::rv&lt;T&gt; &amp; then it output_reference is ::boost::rv&lt;T&gt; &amp;</p>
<p>Else, output_reference is equal to input_reference. </p>
</div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright &#169; 2008-2012 Ion Gaztanaga<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
      </p>
</div></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="move_idp64128064.html"><img src="../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../move/reference.html#header.boost.move.utility_hpp"><img src="../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../index.html"><img src="../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="../mpi.html"><img src="../../../doc/src/images/next.png" alt="Next"></a>
</div>
</body>
</html>
